PQ3DZ53UJ00H

Introduction to PQ3DZ53UJ00H

The PQ3DZ53UJ00H is a high-performance three-terminal positive voltage regulator, and is categorized under PMIC - Voltage Regulators - Linear. This voltage regulator has a wide input voltage range from 6V to 35V and provides a regulated output voltage adjustable from 1.2500V to 30V. In addition to its compact design, the PQ3DZ53UJ00H has highly efficient short-circuit protection, overcurrent protection, and thermal shutdown. These features make it an ideal low-cost solution for portable electronic devices, such as digital cameras, mobile phones, MP3 players, and smart phones.

Application Field and Working Principle of PQ3DZ53UJ00H

The PQ3DZ53UJ00H is designed to provide a regulated output voltage with a minimum of 1.24V and a maximum of 30V. It features a 3-terminal, single-chip design that implements linear voltage regulation with the specified output voltage and current in the range from 5 mA to 1.6 A. The PQ3DZ53UJ00H has two key functions: current-limiting and thermal limiting, which allow the circuit to be remained in a safe condition during excessive current or thermal incident.

The PQ3DZ53UJ00H can be used in a wide variety of applications, such as remote sensing systems, low dropout (LDO) regulators, battery charging systems, mobile/portable applications, and voltage/current regulators. In addition, due to its excellent line and load regulation, the PQ3DZ53UJ00H is suitable for powering DSPs, microprocessors, and FPGAs in cost-sensitive applications.

The PQ3DZ53UJ00H operates based on the concept of series regulator and works in the Bode plot region between -36 dB/dec and -20 dB/dec. The linear regulator uses a low-noise series voltage regulator with a typical value of 1.25V and a maximum value of 30V. The resistance of the pass element is affected by an adjustable voltage on the third pin, which is connected to an external reference.The series voltage regulator constantly compares the voltage of the input with the voltage of the output and adjusts the resistance accordingly to keep the output voltage constant. The power supply voltage is then filtered by an external capacitor. This is a low-noise implementation, which makes the PQ3DZ53UJ00H ideal for powering sensitive electronic systems.

Conclusion

The PQ3DZ53UJ00H is a high-performance three-terminal positive voltage regulator that provides a cost-effective solution for many types of digital electronics applications. It features a relatively wide input voltage range and can be used for various applications due to its excellent line and load regulation. The PQ3DZ53UJ00H also features overcurrent protection, short-circuit protection, and thermal protection, making it an ideal low-cost solution for portable electronic devices.